Cool Cap Engineer

Engineering by an anime nerd

Projects: Pygames Controller Update #2

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So I’ve been busy for the past couple of days for the Pygames Controller project. However, I would say that I’m 90% done with the Pygames controller project. Let me talk about what was been done thus far.

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After my last update, I finished writing the C file for the controller. For some reason, serial communication was not working at the time, so I had to test my code using LEDs. When I flick the left joystick to the left, it will turn on the smallest yellow LED on the board. When the right joystick is flicked up, then it will turn on the green LED. Finally, when I pressed down the yellow tactile switch, it will turn on the yellow LED next to the smallest yellow LED.From my LED tests, I had to modify a few things with the button press code, but the c file for the controller is fully functional.

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As I said in my last post, I had to revise my original layout of the controller. Instead of having 2 joysticks, four tactile buttons, and two triggers, I had to reduce the parts of the controller to two analog sticks and two tactile buttons. Since I’m testing the controller on a breadboard, I wanted to select a layout that could fit onto the breadboard I current have.

debug_results

I did some final testing for the controller C code by seeing the states of the joysticks, and buttons using Arduino’s serial window.  Although testing the controller using the serial window severely slowed my computer down while I was watching the latest episode of JoJo’s Bizarre Adventure (which I highly recommend if you love 80’s anime like Fist of the North Star), I was fairly pleased by the results. However, when I work on a future version of the controller, which I’m 95% I will,decoupling capacitors will need to be added at the buttons terminals because when I pressed and release the button, it does not instantly go to an “off” state immediately.  This is a common, but simple, problem that exists when dealing with digital inputs for microcontrollers.

Right now, I’m writing the python class for the controller. I hope I can finish the python class by the end of this week. Afterwards, I will release the python class, c files, default schematic, and documentation on Google code.  One of my friends even agreed to help me test out my controller by creating a small python game designed exclusively for the controller.

Well, that’s all I have for you guys! Again, if you have any concerns or suggestions, feel free to post a comment.

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